Factor the trinomial, or state that the trinomial is prime.8x2 + 6xy - 9y2
A. (8x - 3y)(x + 3y)
B. (4x - 3y)(2x + 3y)
C. (4x + 3y)(2x - 3y)
D. prime
Answer: B
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Simplify the expression. If any variables are present, assume that they are positive.
? 
A. -20
B. 12
C. -12
D. 20
Solve the problem.Of the coffee makers sold in an appliance store, 4% have either a faulty switch or a defective cord, 1.3% have a faulty switch, and 0.4% have both defects. What is the probability that a coffee maker will have a defective cord given that it has either a faulty switch or defective cord? Round to the nearest thousandth.
A. 0.013 B. 0.775 C. 0.325 D. 0.004
Classify the polynomial as a monomial, binomial, trinomial, or none of these.8.8x
A. trinomial B. binomial C. none of these D. monomial
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x + 3y = -8 21x + 6y = 3
A. (-3, 1) B. (3, -1) C. (1, -3) D. (-1, 3)